fkie_cve-2025-68173
Vulnerability from fkie_nvd
Published
2025-12-16 14:15
Modified
2025-12-18 15:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix softlockup in ftrace_module_enable A soft lockup was observed when loading amdgpu module. If a module has a lot of tracable functions, multiple calls to kallsyms_lookup can spend too much time in RCU critical section and with disabled preemption, causing kernel panic. This is the same issue that was fixed in commit d0b24b4e91fc ("ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY kernels") and commit 42ea22e754ba ("ftrace: Add cond_resched() to ftrace_graph_set_hash()"). Fix it the same way by adding cond_resched() in ftrace_module_enable.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/40c8ee40e48a2c82c762539952ed8fc0571db5bf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix softlockup in ftrace_module_enable\n\nA soft lockup was observed when loading amdgpu module.\nIf a module has a lot of tracable functions, multiple calls\nto kallsyms_lookup can spend too much time in RCU critical\nsection and with disabled preemption, causing kernel panic.\nThis is the same issue that was fixed in\ncommit d0b24b4e91fc (\"ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY\nkernels\") and commit 42ea22e754ba (\"ftrace: Add cond_resched() to\nftrace_graph_set_hash()\").\n\nFix it the same way by adding cond_resched() in ftrace_module_enable."
    }
  ],
  "id": "CVE-2025-68173",
  "lastModified": "2025-12-18T15:08:25.907",
  "metrics": {},
  "published": "2025-12-16T14:15:49.213",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/40c8ee40e48a2c82c762539952ed8fc0571db5bf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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